The question is asking to choose among the following statement is true about the triangle GHI if it is classified as a right triangle, base on the following choices, I would say that the answer would be letter A. At least two sides are congruent. I hope you are satisfied with my answer and feel free to ask for more
66. Tip: subtract all known angles from 360 to find unknown angle
<em>429 cm²</em>
- Step-by-step explanation:
<em>A(blue) =</em>
<em>= 2×6cm×10cm + 2×6cm×8cm + 8cm×10cm + (8cm×10cm - 5cm×4cm)</em>
<em>= 120cm² + 96cm² + 80cm² + 60cm²</em>
<em>= 356 cm²</em>
<em>A(green) =</em>
<em>= 4cm×5cm + 2×5cm×5cm/2 + 4cm×7cm</em>
<em>= 20cm² + 25cm² + 28cm²</em>
<em>= 73 cm²</em>
<em>A(total) =</em>
<em>= A(blue) + A(green)</em>
<em>= 356 cm² + 73 cm²</em>
<em>= 429 cm²</em>
(5 * 3) * 12 = 5 * (3 * 12)
