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2 articles trouvés pour ce sujet.
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An isosceles triangle and an arc |
2015-02-18 |
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Sreeharsha pose la question :
The diagram shows an isosceles triangle ABC in which BC = AC = 20 cm, and angle BAC = 0.7
radians. DC is an arc of a circle, centre A. Find, correct to 1 decimal place,
(i) the area of the shaded region, [4]
(ii) the perimeter of the shaded region. [4]
Penny Nom lui répond. |
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Geometry problems involving triangles |
2001-06-07 |
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Sandi pose la question :
Find the radius of the largest circle contained in a right triangle whose legs are 8 and 15 and hypotenuse is 17. If the right triangle has legs a and b and hypotenuse c, find an expression for the radius of the circle.
Penny Nom lui répond. |
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