Question

Please help me with number 3 a and b. Please I beg you.

Answer 1

#a

• H=10-6=4in

Area:-

$\\ \sf\longmapsto \dfrac{a+b}{2}h$

$\\ \sf\longmapsto \dfrac{10+6}{2}(4)$

$\\ \sf\longmapsto 16(2)=32in^2$

#2

USING PYTHAGOREAN THEOREM

$\\ \sf\longmapsto B^2=8.5^2-7.5^2$

$\\ \sf\longmapsto B^2=72.25-56.25$

$\\ \sf\longmapsto B^2=16$

$\\ \sf\longmapsto B=4$

Area

$\\ \sf\longmapsto LB$

$\\ \sf\longmapsto 7.5(4)$

$\\ \sf\longmapsto 30in^2$