7
a trapezoid
equation for area = h(a +b) ÷ 2
so you sub that in
8(9 +21) ÷ 2 = 8 × 30 ÷ 2 = 120
so the area is 120cm
8
A trapezoid
equation for area = h(a +b) ÷ 2
so you sub that in
6(9 + 5 ) ÷ 2 = 6 × 14 ÷ 2 = 42
So the answer is 42 inches
9
A kite
equation for area = p× q ÷ 2
so you sub that in
(3+3)×(4.5+6.5) ÷ 2 = 6×11÷2 = 3
So the answer is 33 cm
sorry I can't see 10s measurements