Quiz · Medium
Find missing angles, areas and lengths straight from a diagram, the way they appear on SAT and GCSE papers.
Find .
40°
50°
60°
130°
Angles on a straight line add up to 180°: .
Find .
60°
80°
70°
110°
The angles in a triangle add up to 180°: .
What is the area of the rectangle?
13 cm²
26 cm²
40 cm²
80 cm²
Area = length × width = 8 × 5 = 40 cm². 26 cm is the perimeter, a common mix-up.
What is the perimeter of the rectangle?
26 cm
13 cm
40 cm
30 cm
Perimeter = 2(8 + 5) = 26 cm.
What is the area of the circle?
cm²
cm²
cm²
cm²
cm². is the circumference.
What is the circumference of the circle?
cm
cm
cm
cm
cm.
Find the length of the hypotenuse .
14
10
12
. Adding the legs (14) is the classic error.
The two horizontal lines are parallel. Find .
115°
25°
65°
130°
The marked angles are corresponding angles, so they are equal: . 115° would be the co-interior (same-side) angle.
Find .
70°
110°
90°
250°
Vertically opposite angles are equal, so .
What is the volume of the cylinder?
cm³
cm³
cm³
cm³
cm³.
