15:57 M Nome e turma * Nicolas Brito De Souza 3N 1. Analise a imagem a seguir: Sabendo que a + b = 21, então o valor de a é respectivamente igual a: M 8 A) 9 B) 10 C) 11 D) 12 E) 14 6 a * 2 pontos 2. Sobre o triângulo ABC foi traçado * 2 pontos o segmento de reta DE, conforme a imagem a seguir. 59%

What type of trapezoid a has congruent diagonals. b has congruent base angles.

The center of a circle of radius 2 inches is at a distance of 10 inches from the center of a circle of radius length 3 inches. To the nearest tenth of an inch, what is the approximate length of a common internal tangent? Use the hint provided in Exercise 38. HINT: use similar triangles to find OD and DP. Then apply the Pythagorean Theorem twice.

a. Suppose that you wish to prove that RSTSRV. Using the reason Identity, name one pair of corresponding parts that are congruent. b. Suppose you wish to prove that RWTSWV. Considering the figure, name one pair of corresponding angles of these triangles that must be congruent.