The area of an isosceles right triangle is 18 cm2.What is the length of the hypotenuse of the triangle?
Answer(s): B
The area of a triangle is equal to where b is the base of the triangle and h is the height of thetriangle. The base and height of an isosceles right triangle are equal in length. Therefore,
If which of the following could be true?
Answer(s): A
If a = 4, x could be less than A. For example, x could beAlthough x<a is not true for all values of x, it is true for some values of x.
The length of a rectangle is one greater than three times its width. If the perimeter of the rectangle is 26 feet, what is the area of the rectangle?
Answer(s): C
The perimeter of a rectangle is equal to2l+2w, where l is the length of the rectangle and w is the width of the rectangle. If the length is one greater than three times the width, then set the width equal to x and set the length equal to 3x+1:The width of the rectangle is3ftand the length of the rectangle is10ft. The area of a rectangle is equal tolw; (10 ft)(3 ft) = 30ft2.
The measure of an exterior angle of a triangle is equal to the sum of the two interior angles of the triangle to which the exterior angle is NOT supplementary. Angle i is supplementary to angle g, so the sum of the interior angles e and f is equal to the measure of angle
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