Mathsworksheet · stretch
Angles & shape challenge
Angle facts, area and perimeter at grammar-school standard.
1. Two angles of a triangle are 47° and 68°. Find the third.
2. A regular hexagon has perimeter 54 cm. How long is each side?
3. Find the area of a right-angled triangle with base 9 cm and height 8 cm.
4. Angles on a straight line are x, 2x and 3x. Find x.
5. A square has area 81 cm². What is its perimeter?