What is the area of the composite figure? Enter your answer in the box.

cm2
An isosceles triangle on top of a rectangle. The height of the rectangle is 10 centimeters and the base of the rectangle is 5 centimeters. The triangle on top has the same base length. The entire figure from the bottom of the rectangle to the top of the triangle is 18 centimeters high.

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )