HELP PLS!! The area of a triangle is 56 mm2 and the height is 12 mm. How long is the base of the triangle? Round your answer to the nearest tenth.

9.3mm

Step-by-step explanation:

area of Δ = x base x height

  56mm² = x b x 12

  56mm² = b x 6

             b=

       base= 9.3mm

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.