Thursday

January 29, 2015

January 29, 2015

Posted by **Deborah** on Thursday, November 8, 2012 at 2:50pm.

39 m2

169 m2

117 m2

142 m2

I think it is A...?

- math Ms. Sue -
**Steve**, Thursday, November 8, 2012 at 3:01pmnope. If each dimension is scaled by three, the area is scaled by 3^2, so (C).

recall that the area

a = 1/2 bh

If b and h are replaced by 3b and 3h, then

new area

A = 1/2 (3b)(3h) = 1/2 9bh = 1/2 bh * 9, or 9a

- math Ms. Sue -
**rage**, Friday, December 7, 2012 at 1:34am177

**Answer this Question**

**Related Questions**

math - A right triangle has an area of 13 m2. The dimensions of the triangle are...

math - A right triangle has an area of 13 m2. The dimensions of the triangle ...

Algebra 8th grade please help!!!!!! - A right triangle has an area of 13 m2. The...

Math algebra Help please - A right triangle has an area of 24 ft^2 the ...

algebra, HELP! - 9. The sides of a rectangle are increased by a scale factor of ...

Math - Triangle A has an area of 19,00cm squared and similar triangle B has an ...

Algebra 1 - a triangle has an area of 20 inches squared. every dimension of the ...

algebra - A triangle has an area of 20 inches squared. Every dimension of the ...

Math - An isosceles triangle and a rectangle share a base. The area of the ...

geometry - the area of the first triangle is 22 sq feet. if the scale factor of ...