In Fig. 4.221, ∠B <90° and segment AD ⊥ BC , show that (i)b2=h2+a2+x2-2ax

In Fig. 4.221, $∠ B < 90 °$ and segment AD $⊥$ BC , show that $(i) b^{2} = h^{2} + a^{2} + x^{2} - 2 a x$

Mixed-up sentence exercise

Put the parts in order to form a sentence. When you think your answer is correct, click on "Check" to check your answer. If you get stuck, click on "Hint" to find out the next correct part.