04 Dato un segmento \( A B \) che misura 14 cm , con sidera il segmento \( C D \) di 7 cm adiacente ad \( A \) con \( B \equiv C \). Trova il punto medio del segment somma.

Exercice : \( 2^{2} \) Soit \( A B C \) est un triangle rectangle en \( A \) tels que : \( A B=4 \) et \( A C=4 \sqrt{5} \) 1 Calculer : \( B C \) 2 Calculer : \( \sin \widehat{A B C}, \cos \widehat{A B C} \) et \( \tan \widehat{A B C} \) 3 Soit \( H \) le projeté orthogonal de \( A \) sur \( (B C) \). Calculer : \( A H \)

A ship sails 95 km on a bearing of \( 140^{\circ} \), then a further 102 km on a bearing of \( 260^{\circ} \) and then returns directly to its starting point. Find the distance and bearing of the return journey.

यदि एक समांतर चतुर्भुज \( A B C D \) के बिंदुओं \( A, B \) तथा \( C \) के निर्देशांक क्रमश: \( (1,2),(3,4) \) तथा \( (2,5) \) है, तो विकर्ण \( A D \) का समीकरण है [JEE (Main) 2019] \( \begin{array}{ll}\text { (a) } 5 x+3 y-11=0 & \text { (b) } 3 x-5 y+7=0 \\ \text { (c) } 3 x+5 y-13=0 & \text { (d) } 5 x-3 y+1=0\end{array} \)

In a right triangle, if one angle measures 30 degrees, what is the measure of the other non-right angle?

Std 10 Instructions: - The first 15 minutes are cool-off time. - Time is spent for reading the question paper you are not suppose to write any during cool-off time. Read the instructions carefully and attempt the questions. Answer any three questions. Each carries 2 scores Area of a square is \( 25 \mathrm{~cm}^{2} \) a) What is the length of a side? b) What is the length of diagonal ?