4 Dato l'angolo \( \widehat{a b} \) (fig. 2 ), con l'aiuto della carta da lucido costruisci: \( \begin{array}{llll}\text { a) } \widehat{c d}=3 \widehat{a b} ; & \text { b) } \widehat{e f}=5 \widehat{a b} ; & \text { c) } \widehat{g h}=4 \widehat{a b} ; & \text { d) } \widehat{m n}=8 \widehat{a b} ; \\ \text { e) } \widehat{p q}=9 \widehat{a b}\end{array} \) ssserva bene i disegni che hai fatto: angolo \( \widehat{c d} \) è sottomultiplo secondo il numero \( \ldots . \). di \( \widehat{p q} ; \) angolo \( \widehat{g h} \) è sottomultiplo secondo il numero \( \ldots \). di \( \widehat{m n} \).

Determine the standard equation of the ellipse using the stated information. Vertices of the major axis at \( (-1,9) \) and \( (-1,-11) \); length of the minor axis is 10 units. The standard equation of the ellipse is (Simplify your answer. Use integers or fractions for any numbers in the equation.)

\( \left. \begin{array} { l } { \frac { ( 1 - h ) ^ { 2 } } { a ^ { 2 } } + \frac { ( y - k ) ^ { 2 } } { b ^ { 2 } } = 1 } \\ { \frac { h ^ { 2 } } { a ^ { 2 } } + \frac { [ ( 3 - \frac { \pi } { 2 } ) - k ] ^ { 2 } } { b ^ { 2 } } = 1 } \\ { \frac { ( - 1 - h ) ^ { 2 } } { a ^ { 2 } } + \frac { ( 1 - k ) ^ { 2 } } { b ^ { 2 } } = 1 } \\ { \frac { ( - 5 - h ) ^ { 2 } } { a ^ { 2 } } + \frac { ( 3 - k ) ^ { 2 } } { b ^ { 2 } } = 1 } \end{array} \right. \)

In \( \triangle \mathrm{EFG}, e=880 \) inches, \( f=140 \) inches and \( g=890 \) inches. Find the measure of \( \angle \mathrm{G} \) to the nearest 10th of a degree.

In \( \triangle \mathrm{TUV}, u=4.8 \mathrm{~cm}, v=4.4 \mathrm{~cm} \) and \( \angle \mathrm{T}=84^{\circ} \). Find the length of \( t \), to the nearest 1oth of a centimeter.

Score: \( 2 / 3 \) Penalty: none Question In \( \Delta \mathrm{HIJ}, h=50 \mathrm{~cm}, i=95 \mathrm{~cm} \) and \( j=86 \mathrm{~cm} \). Find the measure of \( \angle \mathrm{J} \) to the nearest 10 th of a degree. Answer Attempt 1 out of 2