Saya butuh bantuan,itu luasnya berapa ?

A)
Tarik garis tinggi yg membagi alas jd 2 ( 15 cm --- 15 cm)

Cari tingginya melalui teorema phytagoras
t = √30^2 - 15^2
t = √900 - 225
t = √675
t = √225 × 3
t = 15√3 cm

L = a x t /2
= 30 x 15√3 / 2
= 15 x 15√3
= 225√3 cm^2


B)

Cari alas pakai teorema phytagoras
a = √miring^2 - t^2
a = √10^2 - 8^2
a = √100 - 64
a = √36
a = 6 cm

L = a x t /2
= 6 x 8/2
= 24 cm^2

Note : ^ = pangkat