What is the area of triangle QRS?

Mathematics

2 answers:

AleksandrR [38]3 years ago

6 0

Answer:

A 7

Step-by-step explanation:

AURORKA [14]3 years ago

3 0

Circumscribing a rectangle around the triangle SQR, as shown in the figure, we see that the rectangle has dimensions 3 by 6, so its area is 18 square units.

We can also see that the area between the rectangle and the triangle SQR consists of 3 right triangles with dimensions 2 by 3; 6 by 2, and 1 by 4.

The area of there 3 triangles is (2*3)/2 + (6*2)/2 +(1*4)/2 = 3+6+2=11.

Thus, the area of the triangle is what is left from removing the areas of the 3 surrounding triangles from the area of the rectangle:

A(SQR)=18-11=7 (square units).

Answer: 7 square units

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Citrus2011 [14]

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Step-by-step explanation:

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