7. The diagram below shows a 6-sided shape. 4x - 3
2r +5
x+4
2r
All measurements are in centimetres.
The area of this shape is 102 cm.
Work out the length of the longest side of the shape.

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°

where is the gragh

step-by-step explanation: