This triangle is obtuse( as it's one angle is greater than 90°) as well as isosceles (as it's two sides are equal).
48cm2 is the answer because
Answer:
the triangle above is an isoceles triangle
therefore the base angles are equal
So we have:
X + X + 38= 180
2x = 180-38
2x = 142
X = 71°
Divide by 2. 10/2 divided by 2 = 5/1
