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Resources tagged with Measures - generally similar to Get Cross:

Other tags that relate to Get Cross

Reflections. Rotations. Sine rule. Cartesian equations of circles. Area. Pythagoras' theorem. Measures - generally. Complex numbers. Right angled triangles. Circles.

There are 18 results

Broad Topics > Measures and Mensuration > Measures - generally

Get Cross

Stage: 4 Challenge Level:

A white cross is placed symmetrically in a red disc with the central square of side length sqrt 2 and the arms of the cross of length 1 unit. What is the area of the disc still showing?

The Pi Are Square

Stage: 3 Challenge Level:

A circle with the radius of 2.2 centimetres is drawn touching the sides of a square. What area of the square is NOT covered by the circle?

Kite

Stage: 3 Challenge Level:

Derive a formula for finding the area of any kite.

Qqq..cubed

Stage: 4 Challenge Level:

It is known that the area of the largest equilateral triangular section of a cube is 140sq cm. What is the side length of the cube? The distances between the centres of two adjacent faces of. . . .

Uniform Units

Stage: 4 Challenge Level:

Can you choose your units so that a cube has the same numerical value for it volume, surface area and total edge length?

Does This Sound about Right?

Stage: 3 Challenge Level:

Examine these estimates. Do they sound about right?

All in a Jumble

Stage: 3 Challenge Level:

My measurements have got all jumbled up! Swap them around and see if you can find a combination where every measurement is valid.

Thousands and Millions

Stage: 3 Challenge Level:

Here's a chance to work with large numbers...

Farhan's Poor Square

Stage: 4 Challenge Level:

From the measurements and the clue given find the area of the square that is not covered by the triangle and the circle.

The Moving Planets

Stage: 2 and 3

Mathematics has always been a powerful tool for studying, measuring and calculating the movements of the planets, and this article gives several examples.

Tray Bake

Stage: 3 Challenge Level:

My recipe is for 12 cakes - how do I change it if I want to make a different number of cakes?

Helicopters

Stage: 2, 3 and 4 Challenge Level:

Design and test a paper helicopter. What is the best design?

Make Your Own Solar System

Stage: 2, 3 and 4 Challenge Level:

Making a scale model of the solar system

Carbon Footprints

Stage: 4 Challenge Level:

Is it really greener to go on the bus, or to buy local?

Parallel Parking

Stage: 4

Scientist Bryan Rickett has a vision of the future - and it is one in which self-parking cars prowl the tarmac plains, hunting down suitable parking spots and manoeuvring elegantly into them.

More or Less?

Stage: 4 Challenge Level:

Are these estimates of physical quantities accurate?

Scientific Measurement

Stage: 4 Challenge Level:

Practice your skills of measurement and estimation using this interactive measurement tool based around fascinating images from biology.

Right Time

Stage: 3 Challenge Level:

At the time of writing the hour and minute hands of my clock are at right angles. How long will it be before they are at right angles again?