Question

find the area of triangles ABC in which angle B =60degree, angleC =90degree AB= 20 cm and AC =5cm​

Answer 1

according to hypotenuse theorem

h2=b2+p2

h2 = (20)^2 + 5^2

h2 = 400 + 25

h2 = 425

Answer 2

Answer:

2.5√375 cm²

Step-by-step explanation:

AB² = AC²+CB²

400 = 25+CB²

400-25 = CB²

375 = CB²

√375 = CB

area=1/2 × base×height

=1/2 × CB × AC

= 1/2 × √375×5

= 2.5√375cm²

*Hope this will help you. plz thank me.