Evaluate The Following: 1.C 4,4 2. C7,3+C11,9 3. C - Gauthmath

Có thể bạn quan tâm

Math Resources/Math/

Question

Using Pythagoras' theorem, calculate the length of YZ.  Give your answer in centimetres (cm) to 1 d.p.  Not drawn accuratelySHOW LESS132

Solution

user avatar imageAnswer\overline {YZ} = 2 \sqrt{66} \;cmExplanationDetail stepsPythagorean Theorem: \overline {XY}^{2} + \overline {YZ}^{2} = \overline {XZ}^{2}Substitute \overline {XY} = 5\;cm , \overline {XZ} = 17\;cm into \overline {XY}^{2} + \overline {YZ}^{2} = \overline {XZ}^{2}: 5^{2} + \overline {YZ}^{2} = 17^{2}Calculate 5^{2} + \overline {YZ}^{2} = 17^{2}: \overline {YZ} = 2 \sqrt{66}\;cmClick to rate:99.8(245 votes)Search questionBy textBy image/screenshotDrop your file here orClick Hereto upload

Từ khóa » C(7 3)+c(11 9)