Using the side lengths, determine whether the triangle is acute, obtuse, or right. obtuse acute right

Answer : Right triangle

Use Pythagorean theorem to determine whether given triangle is actue , obtuse or right angle triangle

If then it is an acute triangle

If then it is an obtuse triangle

If then it is a right triangle

From the given figure

c= 45, a= 27 and b =36

c^2 = 45^2 = 2025

a^2 = 27^2 = 729

b^2 = 36^2 = 1296

2025 = 729 + 1296

2025 = 2025

Both sides are equal.

So ,  

Hence it is a right triangle

d. it is a convex pentagon because it has five sides and none of the sides would extend into the inside of the polygon.

step-by-step explanation: