Question

What is the area of triangle rst? 6 square units 9 square units 12 square units 18 square units

Answer 1

The area of the considered triangle RST is given by: Option A: 9 sq. units.

How to find the area of a triangle?

If we have:

• Length of its base = b units
• Its height = h units long,

Then we get:

Area of a triangle = $\dfrac{b \times h}{2} \: \rm unit^2$

The missing image is attached below.

If we take the base of the triangle as RS, then as the line UT is perpendicular to RS (as RS is parallel to x axis and UT is parallel to y axis) and touching from the base line RS to T, thus, it can be taken as height.

Thus, we have:

Area of RST = half of length of RS (base) times length of UT (height)

As visible from image, we have:

Length of RS = 6 blocks of unit length = 6 units

Similarly, length of UT = 3 units

Thus, we get:

Area of RST = $\dfrac{6 \times 3}{2} = 9 \: \rm unit^2$

Thus, the area of the considered triangle RST is given by: Option A: 9 sq. units.

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