Calculate: a) the length of the arc b) the ratio between the circumference to the circle sector aĪn equilateral triangle with a side 16 cm has the same perimeter as an isosceles triangle with an arm of 23 cm. Calculate what percentage of the area of triangle ABC is the area of triangle A'B'C'.Īn equilateral triangle with side 33 is an inscribed circle section whose center is in one of the triangle's vertices, and the arc touches the opposite side. The similar triangle A'B'C' is 2.5 times smaller.
Calculate in square centimeters the area of triangle ABC if the length of side DE is 12 cm, the length of side BC is 16 cm, and the area of triangle ADE is 27 cm².Ī right-angled triangle ABC has sides a = 5 cm, b = 8 cm. Triangle ABC and triangle ADE are similar. Calculate the trapezium area in cm square and calculate how many different perimeters The ABCD rectangular trapezoid with the AB and CD bases is divided by the diagonal AC into two equilateral rectangular triangles. What's his circuit?Ĭalculate an equilateral triangle's perimeter and area with a side of 20 dm. We composed the diamond of four equilateral triangles with a side length of 7 cm. Calculate the size of the longest side of a similar KLM triangle, whose circumference is 66 cm. The lengths of the sides of the triangle ABC are in the ratio 4:2:5.
Calculate the area of the triangle A'B'C '. Triangle A'B'C ', similar to triangle ABC, has side lengths of 6 cm, 120 mm, and 1.5 dm larger than triangle ABC. The ABC triangle has a circumference of 11 cm. We encourage you to watch this tutorial video on this math problem: video1 video2 Related math problems and questions:
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