1) Take a look at any square or rectangle and you’ll find two triangles hidden inside. In a rectangle, draw a straight line from corner to corner. You will see two congruent, or 'same sized' triangles :) a) I understand. Let's keep going. b) I don't completely understand. I will raise my hand for help. 2) Each triangle is half of a rectangle. To find the area of a triangle, find the area of its rectangle, and then divide by 2. What is the area of this triangle? a) 9cm2 b) 10cm2 c) 20cm2 3) To find the area of a triangle, you must multiply base with height, then halve your answer. What is the area of this triangle? a) 45 cm2 b) 60 cm2 c) 45 cm3 4) Find the area: multiply base x height, then divide by 2 a) 20 cm2 b) 9 cm2 c) 10 cm2 5) Find the area  a) 24 cm2 b) 48 cm2 c) 14 cm2 6) Find the area a) 82.5 cm2 b) 82.5 m2 c) 82 m2 7) Find the area a) 36 m2 b) 18 cm3 c) 18 cm2 8) Find the area a) 70 cm2 b) 70 cm3 c) 70 m2 9) Find the area a) 15 cm2 b) 15 mm3 c) 15 mm2 10) Sam has a piece of wood shaped like a triangle. He lost his tape measure and needs to know how long the base is. The area of the triangle is 15 cm2, and the triangle's height is 5 cm.  How long is the base of the triangle? a) 3 cm b) 6 cm c) 5 cm 11) Joyce is working on a quilt pattern. The pattern states the area of the triangle she is making will be 55 cm2. She has finished designing the base of the triangle at 11 cm long. How tall should her triangle pattern be? a) 10 mm b) 5 cm c) 10 cm

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