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Chapter 4: Q2 (page 119)
Suppose that then name the three pairs of corresponding angles.
The three pairs of corresponding angles are
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Draw a large acute scalene triangle. Then draw the perpendicular bisectors of its three sides.
Draw an isosceles triangle and then join the midpoints of its sides to form another triangle. What can you deduce about this second triangle? Explain.
Explain how corollary 1 follows from theorem 4-1 such that an equilateral triangle is also equiangular.
Napoleon, on a river bank, wanted to know the width of the stream. A young soldier faced directly across the stream and adjusted the visor of his cap until the tip of the visor was in line with his eye and the opposite bank. Next he did an about-face and noted the spot on the ground now in line with his eye and visor鈥搕ip. He paced off the distance to this spot, made his report, and earned a promotion. What postulate is this method based on? Draw a diagram to help you explain.
Complete.
A method that can be used to prove right triangles congruent, but cannot be used with other types of triangles, is themethod.
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