This composite shape has an area of 101 cm². What is the height of the trapezoid?

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cm

Image shows a composite figure made of a rectangle with a trapezoid on top of it. The rectangle has a base of 13 centimeters and a height of 5 centimeters. The trapezoid on top of it has a top base of 11 centimeters. The top and bottom base of the trapezoid are parallel. The rectangle has 4 right angles marked.

ou would have 12 of each

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

answer: b

step-by-step explanation: