You first learn how to compute the area for a geometric shape while you are in middle school. Suppose CB = 8 cm, AB = 15 cm, and angle B is 90 degrees. The aerodynamic forces on your kite depend directly on the surface area of the kite. The total area is found by adding the areas of the two triangles.Īrea of the kite = area of triangle ABC + area of triangle ADCĪrea of the kite = 1/2 + 1/2Īrea of the kite = (1/2 + 1/2)Īrea of the kite = (1) Finding components of a shape inside a circle. According to the answer key, the area is 85.4 square centimetres. Therefore, the area of triangle ADC is equal to the area of triangle ABC. So the area of the other triangle would also be the same, right If so, then the area of the kite would be 104 square centimetres, however, thats not the answer. Since diagonal d 1 is a line of symmetry, triangle ADC and triangle ABC are congruent triangles.
This concept is based on finding the area of a triangle given sas (side-angle-side).įor example, looking at the figure above, two unequal sides could be CB and AB. A tangential quadrilateral is also a kite if and only if any one of the following conditions is true: 28 The area is one half the product of the diagonals. If the unequal sides of a kite are known along with the included angle, the area of a kite is the product of the unequal sides and the sine of the included angle.Īrea of the kite above = CB × AB × sin(B)
0 kommentar(er)
