The triangle below has an area of 10 units squared.

x = 5 units

Step-by-step explanation:

area = 1/2bh

10 = 1/2(x)4)

2x = 10

x = 5

Area of a triangle= h·b/2

Step-by-step explanation:

4 · x/2=10

x / 2= 10/4

x = 2.5

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.

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