What is measure of angle A?

Enter your answer as a decimal in the box. Round only your final answer to the nearest hundredth.

A= 53.13

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

sin A = opp /hyp

sin A = 4/5

Take the inverse sin of each side

sin ^-1 (sin A) = sin^-1 (4/5)

A =53.13010235

To the nearest hundredth

A= 53.13

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.