Geometry chapter 3 quiz #1
What types of figures have a ratio of similarity of 1:1? Explain
Angles & side lengths have to be exactly the same
T or F? 7 miles in 10 minutes = 3.5 miles in 5 minutes?
True
T or F? All equilateral triangles are similar?
True
T or F? If cross products are equal, the ratios are equal?
True
T or F? If two shapes are congruent, then their ratio of similarity is 1:1?
True
T or F? 4/5 = 14/16
False (cross multiply)
T or F? All squares are similar?
True (top & bottom ratio always the same)
T or F? 3:5 and 12:20 are equal ratios?
True (x4)
T or F? If x/15 = 12/36, then x=3?
False (cross multiply)
T or F? A square can be similar to a triangle since a square is composed of two triangles?
False (different shapes can't be similar)
T or F? 6 for $0.85 is better than 8 for $1.00?
False (divide)
T or F? All rectangles are similar?
False (doesn't have equal ratio, but has same measurements)
Explain what makes two/more figures similar
Corresponding angles have to be equal with the same measure. Side lengths, angles & ratio.
T or F? 3/5=6/10, so 3 x 6 = 5 x 10?
False
T or F? All isosceles triangles are similar?
False
T or F? If two triangles are similar, their sides are the same length?
False