Question

What is the area in square millimeters of the triangle outlined on the origami figure? b = 9 cm h = 1.36 cm The area of the triangle is mm? (Type a whole number.) O More Enter your answer in the answer box and then click Check Answer. All parts showing Clear All Review progress Question 5 of 8 Back NC II

Answer 1

Answer:

The area of the triangle in square millimeter is;

$612mm^2$

Explanation:

We want to find the area of triangle with the given dimensions in square millimeters.

$\begin{gathered} b=9\operatorname{cm} \\ h=1.36\operatorname{cm} \end{gathered}$

Recall that 1 cm equals 10 mm;

$\begin{gathered} 1\operatorname{cm}=10\operatorname{mm} \\ b=9\operatorname{cm}=90\operatorname{mm} \\ h=1.36\operatorname{cm}=13.6\operatorname{mm} \end{gathered}$

The area of a triangle can be calculated using the formula;

$A=\frac{1}{2}bh$

Substituting the given values;

$\begin{gathered} A=\frac{1}{2}\times90\operatorname{mm}\times13.6\operatorname{mm} \\ A=612mm^2 \end{gathered}$

Therefore, the area of the triangle in square millimeter is;

$612mm^2$