Formulas
Right Triangles
Definitions
Perimeter, Area, Volume
Random
100
A=.5bh
What is the area formula for traingles?
100
Sketch triangle PQR with congruent sides PQ and QR, and with angle Q equal to 90 degrees.
See board.
100
The sum of two angles is 90 degrees.
What are complimentary angles ?
100
The base of an isosceles triangle measures 8 miles and the altitude is 4 miles. Determine the perimeter.
What is an isosceles triangle with perimeter 19.3 miles?
100
The three building blocks of geometry are:
What is point, plane, and line?
200
A= .5(b1+b2)h
What is the formula for the area of a trapezoid?
200
The sum of the squares of the lengths of the legs is equal to the square of the hypotenuse.
What is the pythagorean theorem?
200
The base angles and two leg lengths are congruent.
What is an isosceles triangle?
200
A box has length 12", width 5", and height 3". Determine the surface area and volume.
What is a box with volume 540 cubic inches and surface area 222 square inches?
200
What is the converse of this statement, "If a polygon is a triangle, then it has three sides."
What is "If a polygon has three sides, then it is a triangle."
300
Y=mx+b
What is the slope-intercept form of a line?
300
The two lengths of the legs are 4 and 9. Determine the hypotenuse.
What is a right triangle with hypotenuse 9.8cm?
300
The diagonals are perpendicular bisectors of each other.
What is a rhombus?
300
A trapezoid has a height of 7 and base lengths 15 and 20. Determine the area.
What is a trapezoid with area 122.5?
300
A circle has circumference 12pi. Determine the radius.
What a circle with radius 6?
400
pi(r^2)h
What is formula for the volume of a cylinder?
400
The hypotenuse is 21m and a leg is 12m. Determine the other leg.
What is a right triangle with a leg length 17.2?
400
The sum equals 360.
What is the sum of the exterior angles of a polygon?
400
A cylinder has radius 3cm and height 12cm. Determine the surface area.
What is a cylinder with surface area 256.3 square cm?
400
In triangle JKL, JK=15, KL=12, JL=7. Determine the largest angle.
What is angle L?
500
Sum=180(n-2)
What is the sum of the measures of a triangle's interior angles?
500
A tree casts a shadow 8 feet long. At the same time, a person who is 6 feet tall casts a shadow that is 2.5 feet long. Determine the tree height.
What is a tree of height 19.2 feet?
500
Two angles wich are congruent and formed by the intersection of two lines.
What is a vertical pair?
500
A sphere with radius 4in. Determine the volume.
What is a sphere with volume 268 cubic inches?
500
The area of a triangle is 70 square meters. The base measures 7 meters. Determine the height.
What is a triangle with height 5 meters?
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